Results 61 to 70 of about 297 (183)

Peducing the frequency of switching overvoltage in generator networks

Известия высших учебных заведений: Проблемы энергетики
THE PURPOSE of the study is to study the problem of switching overvoltages in 10 kV generator networks. Using the Matlab Simulink package, create a model of common auxiliaries of a 10/0.4 kV power station, calculate the overvoltage at different sections ...
R. A. Belsky, V. Y. Frolov, R. I. Zhiligotov, E. P. Safonov   +3 more
doaj   +1 more source

Anode thermal process in high current vacuum arc under low frequency AC discharge condition

AIP Advances
Low frequency AC transmission systems exhibit extensive application prospects in scenarios such as long distance offshore wind power transmission and have garnered significant attention in developing eco-friendly power systems. Compared with conventional
Zaiqin Zhang, Xinting Guo, Chuang Wang, Qingqing Gao, Chi Chen   +4 more
doaj   +1 more source

Characteristics and Control of High Current Vacuum Arc Deflection Under the Impact of Lateral Magnetic Field

IEEE Access
In high-voltage switchgear, the external busbars and conductive rods of a handcart-type vacuum circuit breaker form a “U” shaped loop.
Jingjing Li, Xinyu Zhu, Yiping Jiang, Xu Peng, Qihan Li, Xiaolong Huang   +5 more
doaj   +1 more source

Analysis of the Influence Factors of Post-Arc Dielectric Recovery on DC Vacuum Circuit Breaker

工程科学与技术, 2023
The DC vacuum circuit breaker adopts the artificial zero crossing commutation mode to interrupt the DC fault current, which is one of the control and protection methods that combines economy and reliability in DC system.
Xiaoming LIU, Hongfei SHI, Hai CHEN, Wentao JIANG, Yongjie ZHOU, Jiyan ZOU, Jun TIAN   +6 more
doaj  

Analysis and Research of the Electric Field in the Vacuum Arc Interrupter of a 31.5 kV Vacuum Circuit Breaker

Energies
The insulation performance of vacuum arc interrupters greatly affects the reliability of vacuum circuit breakers. Optimizing the electric field distribution of a vacuum arc interrupter can improve its insulation performance.
Naming Zhang, Siying Yang, Yuan Feng, Zechen Bai, Shuhong Wang, Shuya Ning   +5 more
doaj   +1 more source

Analysis and Optimization of Contact Material Ablation under the Cumulative Effect of the Number of Breakings of OLTC. [PDF]

Materials (Basel), 2023
Zhang M, Tan Y, Yang C, Deng J, Xie Z.
europepmc   +1 more source

Recent Trend of Vacuum Circuit Breakers

Journal of the Vacuum Society of Japan, 2009
The recent trend in the development and the application of Vacuum Circuit Breakers (VCBs) as an environmental friendly equipment for electric power transmission and distribution is described. Using VCB's for circuit breakers and switchgear and extending the range of application of VCB's lead to reduce the usage of SF6 gas, whose global warming ...
openaire   +2 more sources

Evaluation of the efficacy of transient overvoltages suppression measures in different wind farm topologies using SF6 circuit breaker. [PDF]

Sci Rep, 2023
Eliyan T, Wadie F.
europepmc   +1 more source

Effect of the contact diameter on the vacuum arc plasma parameter in high current vacuum arcs

AIP Advances
The reduction of sulfur hexafluoride utilization constitutes a pressing global challenge in the development of eco-sustainable power apparatuses. Developing vacuum circuit breakers for transmission-level applications represents a strategic solution to ...
Zaiqin Zhang, Xinting Guo, Chuang Wang, Chi Chen, Qingqing Gao, Yue Bu   +5 more
doaj   +1 more source

Investigation of vacuum arc ignition characteristics and erosion morphology microstructure characteristics of CuCr55 electrode contact materials

AIP Advances
Copper–chromium alloy material, as one of the most important electrode contact materials in the field of electrical contact, has been widely used in vacuum interrupters.
Siyuan Liu, Xianglai Bo, Zhiyuan Liu, Yingsan Geng   +3 more
doaj   +1 more source